Disruption Field

You fill the air around you with magical energy that slows and weakens your enemies in a 10-foot radius. Large or Smaller creatures within the field other than you can't take reactions and the area is considered difficult terrain. Upon entering the field for the first time or starting their turn in it Large and smaller creatures other than you must make a Strength saving throw, on a failure they have a disadvantage on saving throws as long as they remain in the field, on a success, there are no additional effects.